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Merck
CN

370959

Sigma-Aldrich

碱木质素

powder

别名:

牛皮木素

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UNSPSC代码:
12162002
NACRES:
NA.23
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产品名称

碱木质素,

描述

surface tension 43 mN/m (1% aqueous)

质量水平

表单

powder

杂质

5% moisture

缺失

13.4 wt. % loss on heating, @ 316°C
3.3 wt. % loss on heating, @ 149°C
5.7 wt. % loss on heating, @ 204°C
8.5 wt. % loss on heating, @ 260°C

pH值(酸碱度)

6.5 (25 °C, 5%, aqueous solution)

转变温度

sintering point 188 °C

溶解性

NaOH: 0.05% (warm 5% aquesous)
MEK: partially soluble
benzene: insoluble
dioxane: soluble
ethylene glycol: soluble
hexane: insoluble
methanol: partially soluble

密度

1.3 g/mL at 25 °C

堆积密度

23 lb/cu.ft (loose)
32 lb/cu.ft (packed)

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一般描述

碱性木质素是复杂的三维聚合物,也是发生水解降解的牛皮纸木质素。它是木质纤维素材料的主要成分之一。木质素是第二代生物乙醇生产的主要产物,是从木材中分离纤维素的杂质。

应用

碱性木质素可用作天然纤维与石油基树脂复合材料的表面处理剂。它可用作生物吸附剂,有望用于从废水中去除有毒金属离子。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Dong Tian et al.
Biotechnology for biofuels, 10, 157-157 (2017-06-27)
Current single-stage delignification-pretreatment technologies to overcome lignocellulosic biomass recalcitrance are usually achieved at the expense of compromising the recovery of the polysaccharide components, particularly the hemicellulose fraction. One way to enhance overall sugar recovery is to tailor an efficient two-stage
Aiguo Wang et al.
Bioresource technology, 268, 505-513 (2018-08-17)
Maximizing the production of aromatic hydrocarbons from lignin conversion by coupling methane activation without solvent was investigated over Zn-Ga modified zeolite catalyst. The co-loading of Zn and Ga greatly improves lignin conversion, arene yield along with BTEX (i.e., benzene, toluene
Tanja Berger et al.
Folia microbiologica, 66(1), 87-98 (2020-09-26)
The potential of the culturable bacterial community from an Alpine coniferous forest site for the degradation of organic polymers and pollutants at low (5 °C) and moderate (20 °C) temperatures was evaluated. The majority of the 68 strains belonged to
Łukasz Klapiszewski et al.
Carbohydrate polymers, 94(1), 345-355 (2013-04-03)
A new method of synthesis of novel composites obtained from silica and Kraft lignin has been proposed. Silica used in the study was obtained by three methods (hydrolysis and condensation of tetraethoxysilane, precipitation in a nonpolar and polar medium with
R Beauchet et al.
Bioresource technology, 121, 328-334 (2012-08-04)
Conversion of lignin into chemicals and biofuels was performed using the commercial Kraft lignin, Indulin AT. Lignin was depolymerised in an aqueous alkaline solution using a continuous flow reactor generating four fractions. First is the gas fraction (mainly CO(2)), the

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